git: openjdk/jdk: 8225790: Two NestedDialogs tests fail on Ubuntu

[Pankaj Bansal]

Changeset: 21e67e54
Author:    Pankaj Bansal <pbansal at openjdk.org>
Date:      2020-10-20 09:05:51 +0000
URL:       https://git.openjdk.java.net/jdk/commit/21e67e54

8225790: Two NestedDialogs tests fail on Ubuntu

Reviewed-by: serb

! test/jdk/java/awt/Dialog/NestedDialogs/Modal/NestedModalDialogTest.java
! test/jdk/java/awt/Dialog/NestedDialogs/Modeless/NestedModelessDialogTest.java
- test/jdk/java/awt/regtesthelpers/VisibilityValidator.java
- test/jdk/java/awt/regtesthelpers/Waypoint.java